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(N0 Model.) 3 Sheets-Sheet 1.

W. C. AVERY. WIRE. PABRIG MACHINE.

No. 580,750. PatentedApr, 13, 1897.

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w.. o. AVERY. WIRE FABRIG MACHINE.

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Patented Apr.. 13, 1897.

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W. C. AVERY. WIRE PABRIG MACHINE.

(No Model.)

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UNITED *STATES PATENll OFFICE..

VILLIAM C. AVERY, OF SPRINGFIELD, MISSOURI, ASSIGNOR OF ONE-THIRD TOMRS-M. J. COX, OF SAME PLACE.

WIRE-FABRIC MACHINE.

SPECIFICATION forming' part Of Letters Patent N0. 580,7 50, dated April13, 1897. Application filed Tuly 9, 1896. Serial No. 598.573. (Nomodel.)

T @ZZ whom t may concer/t:

Be itknown that I,W1LLIAM C; AVERY, a citizen of the United States,residing at Springfield, in the county of Greene, State of Missouri,have invented certain new and useful Improvements in Wire-FabricMachines, of which the following isa specification, reference being hadtherein to the accompanying drawings.

1o This invention relates to certain `new and useful improvements inmachines for making woven-wire fabrics; and it has for its object, amongothers, to provide an apparatus of this character which shall becomposed of few r 5 parts, and those readily assembled and easilyoperated.

The machine, althon gh designed, primarily, for portable work, as forconstructing fences in the field, may be profitably used for faczo torypurposes, if desired. In the present instance it is shown as designed tobe moved to the Work and held firmly thereto by a levergripper with ahand releasing device adapted to operate on and in conjunction with awire of the fabric, the Wheels of the machine running on a light track,which, together with the guides, forms also a novel feature of theconstruction. I aim, further, to provide a twister-Wheel of novelconstruction whereby 3o more satisfactory results are at-tained withless labor and care on the part of the operator. The spool-carrier alsois of novel construction, being provided in one of its forms with aswivel at its outer or weaving end. I pro- 3 5 Vide a locking-ring whichis mounted for endwise movement upon a bearing-tube with arearwardly-projecting guide-piece and a cylindrical interior, and otherfeatures of construction Which tend to give it superiority 4o over priorforms. I provide also a shifting bar having oppositely-inclined surfacesat regular intervals and mounted for lengthwise movement and forengagement with all of the locking-rings, being so spaced as to give anopposite end movement to each Vsucceeding ring of the series. Theshifting bar is connected to and designed to be actuated by the backwardmovement of the advancing lever. I aim, further, at improvements in thede- .5o tails of construction and in the device as a whole whereby moresatisfactory results are attained, the machine rendered more useful andaccurate in its work, and capable of performing greater service withless exertion of power and practically no care on the part of theattendant.

Other objects and advantages of the invention will hereinafter appear inthe following descriptiomand the novel features thereof will beparticularly pointed out in the ap- 6o pended claims.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part o fthis specification, and in which- Figure l is a side elevation showingmy improvement. Fig. 2 is an enlarged vertical .section through one ofthe twister-heads and spools. Fig. 3 is an end elevation of thetwister-head and spool and its frame. Fig. 4 7o is an elevation of amodified form of spoolframe. Fig. 5 is a perspective detail of thelocking-ring, bearing-tube, and shifter-bar. Fig. 6 is an enlargedperspective detail of the spool-frame. Fig. is a similar View of thelookin g ring det-ached. Fig. Sis a perspective view looking at theopposite side of Fig. 5. Fig. 9 is a perspective detail of thetwisterwheel removed. Fig. lO is a detail in side elevation showing thegripper, the base, the 8o shifter-bar, and the operating-levers. Fig.

l1 is a vertical cross-section through the base. Fig. l2 is a verticallongitudinal section of a modified form of spool-frame, locking-ring,and accessories; and Fig. 13 is a perspective 85 view of thelocking-ring removed.

Like letters of reference indicate like parts throughout theseveralviews.

Referring now to the details of the drawings by letter, A designates thebase or track, 9o composed of two parallel pieces or bstrips a ctsecured together and held'at proper distances apart by the transversepieces a', secured thereto in any suitable manner, and upon theiradjacent edges these pieces a are formed with the longitudinal slots orgrooves a2, as

-seen best in Fig. l1.

It will be understood that the transverse pieces avl are secured to theunder sides of the parts a a, as shown, so as to leave an unobroostructed path for the guide-slices or other devices B, carried by thefoundation or base B' of the machine, which at its rearward end 4carriesrollers or wheels B2, as seen best in Fig. l, and adapted to travel uponthe upper face of the track.

O are the longitudinal wires of the fence or fabric and about which theweft-wires are adapted to be twisted.

It will bereadily understood that the fabric may have a greater or lessnumber of these longitudinal wires, the machine being guided upon thelowermost one and there being one less spool than there are longitudinalwires, as indicated in Fig. 1.

D are the uprights, jointed at their upper ends in any suitable manner,as by the connecting-piece d, (see Fig. 1,) these upright-s beingarranged at the proper distance apart and extending down between thetrack-strips, forming a guide.

The movement of the machine in the direction of the length of the fenceand the consequent length. of mesh is brought about by means, of thelever E, pivotally mounted, as at e, near its lower end upontheginclinedbrace-arm E, secured to the base of one of theuprights D, and at itsother end to the inclined brace e', as seen in Fig. 10, this bracearm ebeing secured at its upper end to the upright and at its lower end tothe shoe B. To this lever below its pivot is pivotally mounted, as at f,thel horizontal arm or bar F, the free end of which is provided withteeth f', which engage with the ratchet-wheel F2, carried by the shaftf2 and provided with a crank-pin f3, with which is connected the rod F3,extending substantially vertically, as indicated, and pivotallyconnected, as at Y f4, with the shifter-bar F4. This shifter-bar has acontinuous zigzag lin or flange f5, as seen in Figs. 1 and 10 and alsoin Fig. 5, and whichshifter-bar is mounted for vertical reciprocation insuitable guides on or adjacent to the uprights D and operates in amanner which will be hereinafter disclosed.

G is a rod or bar pivotally connected at one end, as at g, to the lowerend of the lever E and its other end turned upwardly, as indicated at C,to form one of the jaws of the gripper'. G is another bar having itsouter end formed to constitute the other grippingjaw and pivotallymounted, as at g2, on the casting G2, its other end being connected inany suitable mann er with the release-lever G3, the upper end of whichis connected with the bell-crank lever G4, pivotally mounted, as at g3,on the upper end of the lever E, and its handle g4 being arranged inproximity to the handle e5 of the lever E, as shown in Fig. 1, so thatboth may be readily grasped by the same hand. A spring G5 connects thesetwo gripper-arms G G near their connection with the said levers, as seenin Fig. 10.

G6 is a pin or bolt passed through lugs 96 on the casting G2, as seen inFig. 10, and by which the gripper is held against displacement from thewire C, upon which it is mounted to move, as shown. The construction issuch that the wheel F2 is given ahalfrevolution at each backwardmovement of the lever E, and the inclined surface of the teeth on therack-wheel and the inclination of the teeth on the rack-bar F is suchthat no movement is given to the wheel by the forward movement of saidlever, as will be readily understood upon reference to Fig. 1. The arrowin Fig. l designates the direction of movement,which I term the forwardmovement. The gripper is intended, by reason of the action of the springG5, to provide afirm engagement with the wire on which it acts at alltimes, unless released by the supplemental release-lever G3.

Il are the weft-wires. They are carried by the spools I-I, each of whichis mounted to revolve under a tension-spring hg on the spoolspindle of aspool-carrier. Fach carrier, except when constructed. as shown in Fig.12, which will be hereinafter described, comprises a butt-piece h of alength to easily pass between the warp-wire tubes of two adjacenttwister-wheels and a forwardly extending horizontal portion or frame h',from which extends upwardly the spool-spindle h2, as seen best in Fig.2, and the front end of which frame is turned upwardly, as seen at h3,and has an eye h4 or analogous device for guiding the passing weft-wireII. The vertical portion h has a centrally-located andrearwardlyextending neck or lug H2, having a head or button H3, (seenbest in Fig. 2,) and at opposite ends of the portion 72 and upon thesame side as the neck and button are the rearwardly-extending lugs H4,which are substantially hook-shaped, with their rounded ends or facesadjacent to each other, these lugs being located at opposite extremitiesof the butt-piece or vertical portion h. The device at the weaving endof the spool-carrier for guiding the weft-wire may have an eye 71.4, asshown in Figs. 2 and 3, located in said upturned end on a level with thecenter of the spool, but I sometimes may use and prefer a constructionshown in Fig. 4:, in which a short arm I is pivoted, as at t', to theinner face of this upturned end h3 of the frame, the pivot being locatedon a level with the cen ter of the spool longitudinally, and the armhaving an opening or eye I near its free end, through which passes theweft-wire I'I, (seen in Fig. 4,) the arm being free to describe ahalf-circle whose diameter may be the length of the spool. It beingunderstood that the carrier and spool change ends toward the new twistduring the first half-rotation and each succeeding new twist turning thecarrier back over the same side it will be readily understood that thispivoted arm at the weaving end ofthe spoolcarrier will act as a swiveland thus greatly relieve the passing weft-wire by its free halfrotationupon a pivot. The upturned end of this frame has the semicircularsubstantially vertically-disposed slot l2, through which the weft-wirepasses, as seen in Fig. 4, and which thus permits of the requiredmovement of the arm and weft-wire.

There may be any desired number of twister- IOO IIO

wheels. Each twister wheel comprises a toothed periphery J, beingpractically a gearwheel constituting one of a vertical series ofintermeshing gearing by which the rotarymotion is transmitted to allcarrying parts. This has upon one face two pockets J at diametricallyopposite points, being shown upon what I term the front or outer side,and which in the assembled machine faces rearwardly or toward theweaving end of the machine, and each pocket having its opening on thepitch-line of the toothed periphery to which it is affixed, having apractically semicircular notch J2 in its level front wall, and the sideoutline practicallyof a semiellipse, as seen best in Fig. 9. Extendingfrom this gearwheel is a forwardly-extending or, more correctly,outwardly-extending warp-wire tube or guidej and a rearwardly orinwardly extending hollow hub or shaft j, (see Figs. 2 and 9,) all beingmade integral by a web js, extendingforwardly and centrally and a partof whose surface is level with the flat front wall of the pockets on theperipheryand forining around the connected end of the hollow shaft andinside the periphery a wide and deep annular recess Q7'4. The end ofthis shaft is screw-threaded and receives a nut J 9, as seen in Figs. land 2. This annular recess is entirely open from the rear and alsopartly open from the front by reason of a cut-away portion of the web,as seen at l7'5 in Fig. 9, forming a passage on the front side aroundeach pocket, allowing the free lugs H4 of the passing spool-carrierframe to pass through between the pockets and warp -wiretubes duringrotation. The rearwardly open annular recess allows the locking-ring,hereinafter described, to slide over and engage the two lugs H4, thatlie within the recess during alinement of the machine. A drivetwisterwheel therefore comprises all ofthe above-described parts, and inaddition thereto the gear J has formed on the inner side of theperiphery thereof the beveled gear-teeth J 3, as seen best in Fig. 2,which are designed to be engaged by a small beveled gear K on thecrankshaft K', mounted in a suitable bearing in the frame of the machineand provided with the crank K2, as seen in Figs. l and 2, and by therotation of which the desired number of twists of the weft-Wires areformed. The advance of the machine and the length of mesh are broughtabout by the manipulation of the lever E and its connection with thestationary fabric-wire C, upon which the gripper is designed to act, thesaid lever being moved in the direction of the advance.

The forwardly-extending portion j of the twister-wheel is slottedlongitudinally, as seen atj6 in Fig. 9, the boss or tubular portion j atthe end being provided with an opening js, through which thelongitudinal wire C of the fence or fabric passes and upon which thefence is guided in its movements.

The neck H2 and the head or button H3 of the butt-piece of thespool-carrierare for engagement with the pockets J and the notches J 2of the twister-wheel and are substantially cylindrical in cross-section,as shown in Fig. 6. The lugs H'1 are of a convex segmental cross-sectionwith the reduced portion next to the butt-piece, thus forming a shoulderfacing the same, the outer enlargement being rounded od toward thepoint, as hereinbefore mentioned.

L is a bearing-tube having at'one end the flange L', through whichpasses the means which secure the same to the uprights D. Thecylindrical portion of this bearing-tube forms a bearing for therearwardly-extending shaft j of the twister-wheel, as seenbest in Fig.2. This flange L has an opening or perforation Z, as seen best in Fig.2which serves as a guide for the projection fm on the locking-ring M,which is shown detached in Fig. 7. YThis locking-ring comprises thecylindrical portion made to slide upon the bearing-tube and the lugs H4of lthe adjacent spool-carriers when in alinement. The guide portion orprojection m of this locking-ring has a vertical slot m', as seen bestin Fig. v'7, which receives the zigzag fin or iange fg of theshifter-bar f5, as seen in Fig. 5, and by which iin it is moved. Theouter front end of this locking-ring is partially closed by two segmentsM of an annular flange, located upon opposite sides of the interior ofsaid ring. These two segmental flanges have between their adjacent endsthe openings or notches M2, as seen in Fig. 7, which are diametricallyoppositely disposed.

The shifter-bar f5 is a continuous vertically-disposed bar or rod with aweb or ange or member upon its side having an oppositely-inclinedsurface occurring at places along its length equal to the distances fromcenter to center of the bearing-tubes. This shifter rod or bar is heldperpendicularly movable by the side of the alined bearingtubes andagainst the base-flanges of the saine. The continuous iin or flangehaving the oppositely-inclined surfaces at regular intervals is engagedwith the notches m of the guide projections m of each of thelockingrings, the construction being such that upon endwise movement ofthe shifter-bar, through the medium of the Wheel f2 and the bar or rod Fopposite, horizontal sliding movement is given to each succeedinglocking-ring in the machine.

The backlash or movement of the lever E, by its rack connection with thewheel F2 and the rod F, acting upon this zigzag shifting bar, which, itwill be remembered, has engagement with all of the locking-rings,operates to relieve one set of rearwardly-projecting lugs H4 and engagethe opposite set, thereby holding the spools of weft-wire to rotate uponadjacent and oppositely-revolving twister-wheels, thus forming theintermediate and advance row of twists in the fabric. Thus after eachrow of twists is completed the routine of operations consists in the twoIOO IIO

described movements of the lever E. It will thus be seen that thespool-carriers are automatically reta ined with the alternatetwisterwheels of the machine bythe backlash of the advancing lever E. Itwill be understood that the largest inside diameter of the locking-ringswill be presented to the lugs H4 only upon alinement of the machine, andtherefore they can only be engaged or disengaged therefrom at such pointof alinement, which is at M2 M2', the partial annular flanges M Mforming-barriers at all other points of their rotation. It will benoticed that the bearingtube has at each end the tubular extensions L3L4, which form bearings for the rearwardly-projecting tubular extensionsj' of the twister-wheels, as seen in Fig. 2.

It will be understood from the foregoing description that in myconstruction the locking-rings is the main instrumentality inholding thepairs of spool-carriers to their twistercenters during the operationofforming the twists about the main wires by the weft-wires.

It is considered an important feature of the construction that twospool-carriers are held and caused to rotate with a given twister byreason of an engagement of'their two contiguous shoulderedrearwardly-projecting lugs H4 within one annularlyribbed shiftablelocking-ring, which surrounds the center of rotation and allows the lugsto rotate within the ring and removable only at one point in suchrotation. It is also considered important that in the act of forming,the twists the inner ends of the butts of the spool-carriers are thrustinward toward the center of rotation and the outer or free ends willrotate inV a plane slightly removed from the faces of the adjacenttwisters. The lugs H4' on the free, outer ends will also easily passthrough the curved slot on the faces of the adjacent twister-wheels andacross infront of the locking-rings at the point M2 M2, and the head orbutton H3'wi1l mesh into the pockets J ot' the oppositely-rotatingperipheries without material frictional contact.

It will be observed that I employ no guides for the movingspool-carriers except the central rotatable engagement within thelocking'- ing-ring of small diameter and consequently short travel atthe frictional contact. The head H3 of the neck H2, by which thespoolcarrier receives its rotary movement, is held in the proper pocketby engagement of the inner lug Within the locking-ring.

In Figs. 12 and 13 I have shown a slightly different construction inwhich the lockingring M is sleeved upon the bearing-tube L, as above,but has a groove m3 extending entirely around the same and in which thefin fi of the shifting bar f5 works. This locking-ring is provided withthefpins m4, disposed upon diametricallv opposite sides of thelocking-ring and projecting from the end thereof in the direction of thelength of said ring. These two pins are engaged in opening m5 in thetwister head or wheel and the latter rotates the ring upon thebearing-tube L. In this construction the pins entering the slots m6 inthe butt-pieces of the spool-carrier Vframes perform the same functionas the rearwardly projecting lugs H4 (shown in Fig. 2) entering thelocking-rings in the other form of construction perform. Thetwister-wheel instead of being cut away around the pockets simply hasthe openings for the pins. The ring in this instance rotates by reasonof the engagement of the pins in the twister-head upon the bearing-tubeand under and in en* gagement with the shifting bar. At the properalinement of the spool-carrier butts with their slots, as shown, thering and pins may be shifted outwardly, entering and retaining adjacentends of the butts to rotate with the carrying parts, each alternate ringof the series moving and acting in a reverse manner, respectively. InFig.v l2 the warpwire tube orguide j is shown as formed independent ofthe hollow hub or shaft j. and engaged therein by screw-threads, as itmay be found convenient at times to remove the same to replace it with anew one.

Modifications in detail may be resorted to without departing from thespirit of my invention or sacrificing any of its advantages.

The sizes and relative proportions of the different parts may be changedat will within reasonable limits, and although the shifterbar has beendescribed as designed for automatic actuation by the return movement ofthe advancing' lever it is evident that the connections may be varied,and under some conditions it may be preferable to arrange for theactuation of this shifting bar by a special lever.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In awire-fabric machine, a twister-wheel formed withoppositely-disposed, peripheral pockets upon its face,and aforwardly-curved, connecting-web cut away upon opposite sides adjacentto said pockets; substantially as described.

2. In awire-fabric machine, atwister-wheel formed withoppositely-disposed, peripheral pockets, a forwardly-curved,connecting-web cut away upon opposite sides upon curved lines to nearthe center leaving a curved opening or recess through the body portionof the wheel; substantially as described.

3. In a wire-fabric machine, a twister-wheel formed withoppositely-disposed, peripheral pockets, a forwardly-curved,connecting-web cuty away upon opposite sides upon curved lines to nearthe center leaving a curved opening or recess through the body portionof the wheel, the forward curve of said web forming an annular passage,and a bearing-shaft extending centrally therefrom; substantially asdescribed.

4. In awire-fabric machine, a twister-wheel formed with oppositelydisposed pockets upon one face open upon the sides toward the IOO IIO

IZO

periphery, a centrally-disposed bearing-shaft extending rearwardly to apoint in front of the plane of the peripheral toothed portion, and aconnected front tube in line with said shaft; substantially asdescribed.

5. In a wire-fabric machine, a twister-wheel formed with oppositelydisposed pockets upon one face open upon the sides toward the periphery,a centrally-disposed bearing-shaft extending rearwardly to a point infront of the plane of the peripheral toothed portion, a connected fronttube in line with said shaft, and a centrally-curved and partly cutawayweb connecting said shaft and tube; su bstantially as described.

6. In a wire-fabric machine, a twister-wheel formed with oppositelydisposed pockets upon one face open upon the sides toward the periphery,a centrally-disposed bearing-shaft extending rearwardly to a point infront ofthe plane of the peripheral toothed portion, a connected fronttube in line with said shaft, a centrally-curved and partly cut-away webconnecting said shaft and said tube, and a second toothed rim back ofthe first for engagement with a driving-gear; substantially asdescribed.

7. In a wire-fabric machine, aspool-earrier comprising a frame having aspindle, and an upturned outer end, and a rotating arm having an eye forthe weft-wire; substantially as described.

8. In a wire-fabric machine, a spool-carrier formed with a verticalportion having laterally-proj ectin g lugs, and a centrally-disposedneck having a button; substantially as described.

9. In a wire-fabric machine, the combination with a bearing-tube, of alocking-ring mounted for movement endwise thereon; substantially asdescribed.

10. In a wire-fabric machine, a locking-ring provided with. arearwardly-extending guidepiece; substantially as described.

ll. In a wire-fabric machine, a locking-ring provided with arearwardly-extending guidepiece, having a vertically-disposed notch toreceive a flange on the shifter-bar; substantially as described.

12. In a wire-fabric machine, a locking-ring having arearwardlyprojecting guide-'arm and an inwardly-extendin g flange at itsother end having diametrically-disposed notches; substantially asdescribed.

13. In awire-fabric machine, a shifting bar disposed vertically, andhaving a zigzag iin disposed lengthwise thereof; substantially asdescribed.

14:. In a wire-fabric machine, a track composed of side pieces formedupon their ad jacent edges with longitudinal grooves, and transversepieces connecting the said side pieces, and holding them at the properdistance apart; substantially as described.

15. In a wire-fabric machine, the combination with a spool-carrier,having lugs, of a'lockingring having a segmental interior iiange withoppositely-disposed notches, a bearing tube, a twister-head, and meansfor rotating the latter; substantially as described.

16. In a wire-fabric machine, the combination with two adjacent tubes,twister-wheels, and lockingrings, of a spool-carrier provided with thebutt-piece disposed to come between two adjacent tubes; substantially asdescribed.

17. In a wire-fabric machine, the combination with two adjacent tubes,twister-wheels,- and locking-rings, of a spool-carrier provided with thebutt-piece disposed to come between two adjacent tubes, and providedwith a central neck and button and a shouldered lug on oppositeextremities of the butt-piece; substantially as described.

18. The combination with two adjacent bearing-tubes, twister-heads, andlockingrings, of a spool-carrier having a butt-piece withcentrally-disposed neck and head and lugs parallel therewith uponopposite sides thereof either of said lugs being engageable within thelocking-ring of its adjacent twisting device, and rotatable within saidring when fully entered therein; substantially as described.

19. The combination with a twister-wheel having oppositely-disposedpockets and a web with cut-away portions opposite the pockets, and ahollow tube extending upon both sides of the web, of a locking-ringhaving a guidelug with a notch, and a vertically-disposed shifter-barhaving a flange engaging said notch; substantially as described.

20. The combination with a twister-wheel having oppositely-disposedpockets and a web with cut-away'portions opposite the pockets, and ahollow tube extending upon both sides of the web, of a locking-ringhaving a guidelug with a notch, and a vertically-disposed shifter-barhaving a flange engaging said notch, and a bearing-tube having a flangewith an opening to receive the guide-lug of the locking-ring;substantially as described.

21. The combination with a twister-wheel having oppositely-disposedpockets and a web with cut-away portions opposite the pockets, and ahollow tube extending upon both sides of the web, of a locking-ringhaving a guidelug with a notch, and a vertically-disposed shifter barhaving a flange engaging said notch, a bearing-tube having a flange withan opening to receive the guide-lug of the locking-ring, and aspool-carrier having lugs to be entered into the locking-ring;substantially as described.

22. The combination with a twister-wheel having oppositely-disposedpockets and a web with cut-away portions opposite the pockets, and ahollow tube extending upon both sides of the web, of a locking-ringhaving a guidelng with a notch, a vertically-disposed shifterbar havinga ange engaging said notch, a bearing-tube having a flange with anopening to receive the guide-lug of the locking-ring, and aspool-carrier having lugs to be entered ICO IIO

into the locking-rings, the latter being provided at one end with aninterior flange having oppositely-disposed notches; substantially asdescribed.

23. The combination with a spool-carrier having a butt-piece with a neckwith a head and lugs upon opposite sides thereof, of a twister-headhaving peripheral pockets, and a web cut away upon opposite sidesadjacent to said pockets; substantially as described.

24:. The combination with a bearing-tube, of a locking-ring mounted forendwise movement thereon and having a rearwardly-projecting guide-piecewith a vertical notch, and a vertically-disposed shifter-bar having aflange engaging said notch; substantially as described.

25. The combination with a plurality of twister heads, bearing tubes andlockingrings having guide-pieces with notches, of a vertically disposedshifter bar having a flange with oppositely-disposed inclined portionsengaging the notches of the guide-pieces to simultaneously shift all ofthe lockingrings; substantially as described.

26. The combination with the machine and its twisting devices, of agripper adapted to engage one of the longitudinal wires of the fabric, alever connected with and adapted to operate said gripper, and arelease-lever mounted upon the operating-lever; substantially asdescribed.

27. The combination with a twisting device and a shifter-bar, of agripper, a pivoted lever connected therewith, and a connection betweenthe same and the shifter-bar; substantially as described.

28. The combination with the shifter-bar and a rod pivotally connectedtherewith, of a toothed wheel to which said rod is eccentricallyconnected, a gripper, and an operating-lever therefor, and a connectionbetween the same and said wheel; substantially as described.

29. The combination with the shifter-bar and the rod pivotally connectedtherewith, of a toothed wheel to which said rod is eccentricallyconnected, a gripper, an operatinglever therefor, a connection betweenthe same and said wheel, and a release-lever connected with theoperating-lever and with the gripper; substantially as described.

30. The combination with the twister-heads and bearingetubes andlocking-rings, of a shifter-bar and a lever, and intermediateconnections whereby the locking-rings are given an endwise movement bythe movement of said lever; substantially as described.

3l. The combination with the twister-heads, the bearing-tubes andlocking-rin gs, of a shifter-bar, a gripper, an operating-lever con-:nected therewith, and a connection between said lever and theshifter-bar; substantially as described.

32. The combination with the twister-heads,

the bearing-tubes, and locking-rings, of a shifter-bar, a gripper, anoperating-lever connected therewith, a connection between said lever andthe shifter-bar, and a supplemental lever connected with theoperating-lever and with the gripper; substantially as described.

33. The combination with the twister-heads, the bearing-tubes Vandlocking-rings, of a shifter-bar, a gripper, an operating-lever connectedtherewith, a connection between said lever and the shifter-bar, asupplemental lever connected with the operating-lever and with thegripper, and a spring connecting the two arms of the gripper;substantially as described.

34. The combination with the shifter-bar having zigzag flange, of a rodpivotally connected with said bar, a toothed wheel to which the rod iseccentricall y connected, a gripper, a leverconnected therewith foroperatin g the same, and a toothed bar pivotally mounted on theoperating-lever and adapted to engage said wheel; substantially asdescribed.

35. The combination with the shifter-bar having a zigzag flange, of arod pivotally connected with said bar, a toothed wheel to which the rodis eccentrically connected, a gripper, a lever connected therewith foroperatin g the same, a toothed bar pivotally mountedY on theoperating-lever and adapted to engage said wheel, and a supplement-allever mounted on the operating-lever, and connected with the gripper;substantially as described.

36. The combination with the shifter-bar having a zigzag flange, of arod pivotally connected with said bar, a toothed wheel to which the rodis eccentrically connected, a gripper, a lever connected therewith foroperating the same, a toothed bar, pivot-ally mounted on theoperating-lever-and adapted to engage said wheel, a supplemental levermounted on the operating-lever, and connected with the gripper, and aspring connecting the two arms of the gripper; substantially asdescribed.

37. The combination with 'a spool-carrier frame, a twister-head,bearing-tube and a locking-ring upon the bearing-tube, of means forengaging the carrier-frame and locking ring, whereby they are rotatabletogether; substantially as described.

38. The combination with a spool-carrier frame, a twister-head,bearing-tube and a locking-ring upon the bearing-tube, of means forengaging the carrierframe `and lockingrin g whereby they are rotatabletogether, and a shifter-bar mounted for vertical movement to move saidlocking-ring to and from the spoolcarrier frame; substantially asdescribed.

n testimony whereof I affix my signature in presence of two witnesses.

WILLIAM C. AVERY.

"Witnesses:

l-I. T. NORMAN, C. E. ScHwErTznR.

ICO

IOS

